Thompsontown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thompsontown, a borough in Juniata County, Pennsylvania.
Overnight
44°F
Patchy Fog
Patchy fog. Partly cloudy, with a low around 44. Wind around 0 mph.
7-day forecast for Thompsontown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 44°F | Patchy Fog | 0 mph | 0% |
| Wednesday | 75°F | Patchy Fog then Mostly Sunny | 0 to 7 mph SE | 1% |
| Wednesday Night | 59°F | Light Rain | 5 mph SE | 87% |
| Thursday | 74°F | Light Rain | 2 to 6 mph S | 86% |
| Thursday Night | 51°F | Chance Light Rain then Mostly Cloudy | 1 mph W | 28% |
| Friday | 68°F | Slight Chance Light Rain | 1 mph NW | 15% |
| Friday Night | 44°F | Partly Cloudy | 2 mph NW | 11% |
| Saturday | 60°F | Slight Chance Light Rain | 2 to 7 mph W | 18% |
| Saturday Night | 38°F | Mostly Cloudy | 7 mph W | 13% |
| Sunday | 59°F | Mostly Sunny | 7 mph NW | 5% |
| Sunday Night | 36°F | Partly Cloudy | 6 mph W | 6% |
| Monday | 58°F | Mostly Sunny | 5 to 9 mph W | 6% |
| Monday Night | 34°F | Mostly Clear | 6 mph W | 3% |
| Tuesday | 63°F | Mostly Sunny | 3 to 8 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Thompsontown (40.566, -77.236). Updated through the day.
Growing snapshot for Thompsontown
Last spring frost
Apr 21
First fall frost
Oct 24
Growing season
185 days
Hardiness zone
6b
More local growing data for Thompsontown: nearby ZIP 17094 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lewistown, Pa (18.2 mi from Thompsontown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.